| Boomtown | A town that is growing very quickly |
| Legend | A story handed down through many years, based on some fact, but mostly untrue |
| Telegraph | A machine that uses electricity to send messages |
| Telegram | A message sent with a telegraph |
| Determination | Great purpose in carrying out an activity |
| Immigrant | A person who comes into a foreign country or region to live |
| Canals | A waterway dug across land for ships or small boats to go through or to carry water to places that need it |
| Industrial Revolution | The widespread replacement of manual labor by machines |
| Sewage | Waste matter that passes through sewers, or underground drains |
| Fort | A trading post protected by soldiers |
| Explorers | People who travel for adventure or to discover new things |
| Exposition | A large public exhibition |
| Great Depression | The time when business activity was slow and many people were out of work |
| Landmarks | Famous buildings |
| Mayor | A person that is elected by the people to lead a city |
| Citizen | A member of a city, state, or country |
| City Council | A group of men and women that help make decisions and set and enforce laws for the city |